While it's got K-Lo all worked up, it looks to me like a ticket-splitting endorsement. The basis of the endorsement is entirely Bush's assertiveness on terrorism, and his willingness to use force without raising his hand and asking for a hall pass in French and German. On every other issue, including his handling of Iraq, taxes, judicial nominations, "reaching out to Democrats," everything, the Post is critical of the President.
My guess is that this is an endorsement more calculated to help Ken Salazar than George W. Bush.